package com.atguigu.gulimall.product.service.impl;

import com.atguigu.common.constant.ProductConstant;
import com.atguigu.gulimall.product.dao.AttrAttrgroupRelationDao;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.dao.CategoryDao;
import com.atguigu.gulimall.product.entity.AttrAttrgroupRelationEntity;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.entity.CategoryEntity;
import com.atguigu.gulimall.product.service.CategoryService;
import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimall.product.vo.AttrRespVo;
import com.atguigu.gulimall.product.vo.AttrVo;
import com.baomidou.mybatisplus.core.toolkit.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.AttrDao;
import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;


@Service("attrService")
public class AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {



    @Autowired
    private CategoryDao categoryDao;

    @Autowired
    private AttrGroupDao attrGroupDao;

    @Autowired
    AttrAttrgroupRelationDao relationDao;


    @Autowired
    private CategoryService categoryService;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }



    @Override
    @Transactional
    public void saveAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        //保存attrEntity
        //利用attr的属性给attrEntity的属性赋值，前提是他们俩的属性名一直
        BeanUtils.copyProperties(attr, attrEntity);
        this.save(attrEntity);



        if(attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode() && attr.getAttrGroupId()!=null){
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attrEntity.getAttrId());
            relationDao.insert(relationEntity);
        }



    }






//    @Override
//    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId) {
//        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<>();
//        //模糊查询
//        if (catelogId != 0){
//            queryWrapper.eq("catelog_id", catelogId);
//        }
//        String key = (String) params.get("key");
//        if (!StringUtils.isEmpty(key)){
//            //attr_id  attr_name
//            queryWrapper.and((wrapper) -> {
//                wrapper.eq("attr_id", key).or().like("attr_name", key);
//            });
//        }
//        IPage<AttrEntity> page = this.page(
//                new Query<AttrEntity>().getPage(params),
//                queryWrapper
//        );
//        //封装分页数据
//        PageUtils pageUtils = new PageUtils(page);
//
//        //查出新增的属性
//        List<AttrEntity> records = page.getRecords();
//        List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
//            AttrRespVo attrRespVo = new AttrRespVo();
//            BeanUtils.copyProperties(attrEntity, attrRespVo);
//            CategoryEntity categoryEntity = categoryDao.selectOne(new QueryWrapper<CategoryEntity>().eq("cat_id", attrEntity.getCatelogId()));
//            if (categoryEntity != null) {
//                attrRespVo.setCatelogName(categoryEntity.getName());
//            }
//
//            AttrAttrgroupRelationEntity attrgroupRelationEntity = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
//            if (attrgroupRelationEntity != null) {
//                AttrGroupEntity attrGroupEntity = attrGroupDao.selectOne(new QueryWrapper<AttrGroupEntity>().eq("attr_group_id", attrgroupRelationEntity.getAttrGroupId()));
//                attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
//            }
//
//            return attrRespVo;
//        }).collect(Collectors.toList());
//        // 把新的数据传送过去
//        pageUtils.setList(respVos);
//        return pageUtils;
//    }


//    @Override
//    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String attrType) {
//        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("attr_type", "base".equalsIgnoreCase(attrType)?1:0);
//        if (catelogId != 0){
//            queryWrapper.eq("catelog_id", catelogId);
//        }
//        String key = (String) params.get("key");
//        if (!StringUtils.isEmpty(key)){
//            //attr_id  attr_name
//            queryWrapper.and((wrapper) -> {
//                wrapper.eq("attr_id", key).or().like("attr_name", key);
//            });
//        }
//        IPage<AttrEntity> page = this.page(
//                new Query<AttrEntity>().getPage(params),
//                queryWrapper
//        );
//        PageUtils pageUtils = new PageUtils(page);
//
//        List<AttrEntity> records = page.getRecords();
//        List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
//            AttrRespVo attrRespVo = new AttrRespVo();
//            BeanUtils.copyProperties(attrEntity, attrRespVo);
//            if ("base".equalsIgnoreCase(attrType)){
//                AttrAttrgroupRelationEntity attrgroupRelationEntity = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
//                // 点击规格参数 报错
//                if (attrgroupRelationEntity != null  ) {
//                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectOne(new QueryWrapper<AttrGroupEntity>().eq("attr_group_id", attrgroupRelationEntity.getAttrGroupId()));
//                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
//                }
//            }
//            CategoryEntity categoryEntity = categoryDao.selectOne(new QueryWrapper<CategoryEntity>().eq("cat_id", attrEntity.getCatelogId()));
//            if (categoryEntity != null) {
//                attrRespVo.setCatelogName(categoryEntity.getName());
//            }
//
//
//            return attrRespVo;
//        }).collect(Collectors.toList());
//        // 把新的数据传送过去
//        pageUtils.setList(respVos);
//        return pageUtils;
//    }


    @Override
    public PageUtils queryBaseAttrPage(Map<String, Object> params, Long catelogId, String type) {
        QueryWrapper<AttrEntity> queryWrapper = new QueryWrapper<AttrEntity>().eq("attr_type","base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode());

        if(catelogId != 0){
            queryWrapper.eq("catelog_id",catelogId);
        }

        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            //attr_id  attr_name
            queryWrapper.and((wrapper)->{
                wrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }

        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                queryWrapper
        );

        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();
        List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);

            //1、设置分类和分组的名字
            if("base".equalsIgnoreCase(type)){
                AttrAttrgroupRelationEntity attrId = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                if (attrId != null && attrId.getAttrGroupId()!=null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }

            }


            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCatelogName(categoryEntity.getName());
            }
            return attrRespVo;
        }).collect(Collectors.toList());

        pageUtils.setList(respVos);
        return pageUtils;
    }




    //保存时，要修改两张表
    @Transactional
    @Override
    public void updateAttr(AttrVo attr) {
        AttrEntity attrEntity = new AttrEntity();
        BeanUtils.copyProperties(attr, attrEntity);
        this.updateById(attrEntity);

        if (attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attr.getAttrId());
            //判断是新增还是删除
            Integer count = relationDao.selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            if (count > 0){
                relationDao.update(relationEntity, new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
            }else{
                relationDao.insert(relationEntity);
            }
        }

        //

    }





    @Override
    public AttrRespVo getAttrInfo(Long attrId) {
        AttrRespVo respVo = new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);
        BeanUtils.copyProperties(attrEntity,respVo);



        if(attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            //1、设置分组信息
            AttrAttrgroupRelationEntity attrgroupRelation = relationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if(attrgroupRelation!=null){
                respVo.setAttrGroupId(attrgroupRelation.getAttrGroupId());
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupRelation.getAttrGroupId());
                if(attrGroupEntity!=null){
                    respVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }
        }


        //2、设置分类信息
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.findCatelogPath(catelogId);
        respVo.setCatelogPath(catelogPath);

        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if(categoryEntity!=null){
            respVo.setCatelogName(categoryEntity.getName());
        }


        return respVo;
    }

//    @Override
//    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
//        List<AttrAttrgroupRelationEntity> relationEntities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
//        List<Long> attrIds = relationEntities.stream().map((entity) -> {
//            return entity.getAttrId();
//        }).collect(Collectors.toList());
//
//        List<AttrEntity> attrEntities = this.baseMapper.selectBatchIds(attrIds);
//
//        return attrEntities;
//    }
    /**
     * 根据分组id查找关联的所有基本属性
     * @param attrgroupId
     * @return
     */
    @Override
    public List<AttrEntity> getRelationAttr(Long attrgroupId) {
        List<AttrAttrgroupRelationEntity> entities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));

        List<Long> attrIds = entities.stream().map((attr) -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());

        if(attrIds == null || attrIds.size() == 0){
            return null;
        }
        Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
        return (List<AttrEntity>) attrEntities;
    }



//    @Override
//    public void deleteRelation(AttrGroupRelationVo[] vos) {
//        List<AttrGroupRelationVo> relationVos = Arrays.asList(vos);
//        List<AttrAttrgroupRelationEntity> entities = relationVos.stream().map((relationVo) -> {
//            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
//            BeanUtils.copyProperties(relationVo, relationEntity);
//            return relationEntity;
//        }).collect(Collectors.toList());
//        //根据attrId，attrGroupId批量删除关联关系
//        attrAttrgroupRelationDao.deleteBatchRelation(entities);
//    }

    @Override
    public void deleteRelation(AttrGroupRelationVo[] vos) {
        //relationDao.delete(new QueryWrapper<>().eq("attr_id",1L).eq("attr_group_id",1L));
        //
        List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());

        relationDao.deleteBatchRelation(entities);
    }

    /*
     *获取当前分组没有关联的所有属性
     *@param:[params, attrgroupId]
     *@return:com.xmh.common.utils.PageUtils
     *@date: 2021/8/9 20:35
     */
    @Override
    public PageUtils getNoRelationAttr(Map<String, Object> params, Long attrgroupId) {
        //1、当前分组只能关联自己所属分类里面的所有属性
        //先查询出当前分组所属的分类
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2、当前分组只能关联别的分组没有引用的属性
        //2.1当前分类下的所有分组
        List<AttrGroupEntity> attrGroupEntities = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));
        List<Long> attrGroupIds = attrGroupEntities.stream().map(attrGroupEntity1 -> {
            return attrGroupEntity1.getAttrGroupId();
        }).collect(Collectors.toList());
        //2.2这些分组关联的属性
        List<AttrAttrgroupRelationEntity> relationEntities = relationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", attrGroupIds));
        List<Long> attrIds = relationEntities.stream().map((relationEntity) -> {
            return relationEntity.getAttrId();
        }).collect(Collectors.toList());
        // 从当前分类的所有属性中移除这些属性
        QueryWrapper<AttrEntity> wrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type", ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if (attrIds != null && attrIds.size() > 0){
            wrapper.notIn("attr_id", attrIds);
        }
        //模糊查询
        String key = (String) params.get("key");
        if (!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
                w.eq("attr_id", key).or().like("attr_name", key);
            });
        }
        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), wrapper);

        return new PageUtils(page);
    }

    @Override
    public List<Long> selectSearchAttrs(List<Long> attrIds) {
        return baseMapper.selectSearchAttrIds(attrIds);

    }


}
